Fig. 4. Western blotting of the GMSA nuclear matrix extract and DEAE-purified fractions. Coomassie Blue staining (1-3) and immunoblot (4-9) of the nuclear matrix extract (lanes 2, 4, 6, 8) and 0.3 M NaCl DEAE fractions (lanes 3, 5, 7, 9) detected with antibodies against P68, lamins A/C or lamin B as indicated.